Files
phpmyadmin/libraries/storage_engines.lib.php
Alexander M. Turek 7f0096ceda Gemini detection
2005-01-18 23:36:53 +00:00

101 lines
3.1 KiB
PHP

<?php
/* $Id$ */
// vim: expandtab sw=4 ts=4 sts=4:
/**
* Library for extracting information about the available storage engines
*/
$GLOBALS['mysql_storage_engines'] = array();
if (PMA_MYSQL_INT_VERSION >= 40102) {
/**
* For MySQL >= 4.1.2, the job is easy...
*/
$res = PMA_DBI_query('SHOW STORAGE ENGINES');
while ($row = PMA_DBI_fetch_assoc($res)) {
$GLOBALS['mysql_storage_engines'][strtolower($row['Engine'])] = $row;
}
PMA_DBI_free_result($res);
unset($res, $row);
} else {
/**
* Emulating SHOW STORAGE ENGINES...
*/
$GLOBALS['mysql_storage_engines'] = array(
'myisam' => array(
'Engine' => 'MyISAM',
'Support' => 'DEFAULT'
),
'merge' => array(
'Engine' => 'MERGE',
'Support' => 'YES'
),
'heap' => array(
'Engine' => 'HEAP',
'Support' => 'YES'
),
'memory' => array(
'Engine' => 'MEMORY',
'Support' => 'YES'
)
);
$known_engines = array(
'archive' => 'ARCHIVE',
'bdb' => 'BDB',
'csv' => 'CSV',
'innodb' => 'InnoDB',
'isam' => 'ISAM',
'gemini' => 'Gemini'
);
$res = PMA_DBI_query('SHOW VARIABLES LIKE \'have\\_%\';');
while ($row = PMA_DBI_fetch_row($res)) {
$current = substr($row[0], 5);
if (!empty($known_engines[$current])) {
$GLOBALS['mysql_storage_engines'][$current] = array(
'Engine' => $known_engines[$current],
'Support' => $row[1]
);
}
}
PMA_DBI_free_result($res);
unset($known_engines, $res, $row);
}
/**
* Function for generating the storage engine selection
*
* @param string The name of the select form element
* @param string The ID of the form field
* @param boolean Should unavailable storage engines be offered?
* @param string The selected engine
* @param int The indentation level
*
* @global array The storage engines
*
* @return string
*
* @author rabus
*/
function PMA_generateEnginesDropdown($name = 'engine', $id = NULL, $offerUnavailableEngines = FALSE, $selected = NULL, $indent = 0) {
global $mysql_storage_engines;
$selected = strtolower($selected);
$spaces = '';
for ($i = 0; $i < $indent; $i++) $spaces .= ' ';
$output = $spaces . '<select name="' . $name . '"' . (empty($id) ? '' : ' id="' . $id . '"') . '>' . "\n";
foreach ($mysql_storage_engines as $key => $details) {
if (!$offerUnavailableEngines && ($details['Support'] == 'NO' || $details['Support'] == 'DISABLED')) {
continue;
}
$output .= $spaces . ' <option value="' . htmlspecialchars($key). '"'
. (empty($details['Comment']) ? '' : ' title="' . htmlspecialchars($details['Comment']) . '"')
. ($key == $selected || (empty($selected) && $details['Support'] == 'DEFAULT') ? ' selected="selected"' : '') . '>' . "\n"
. $spaces . ' ' . htmlspecialchars($details['Engine']) . "\n"
. $spaces . ' </option>' . "\n";
}
$output .= $spaces . '</select>' . "\n";
return $output;
}
?>